Improvement in oilers



UNITED STATES PATENT DFFIGE.

FERDINAND LEHR, OF NEW YORK, N. Y.

IMPROVEMENT IN OILERS.

Specification forming part of Letters Patent No. 155,321, datedSeptember 22, 1874; application filed August 19, 1874.

To all whom it may concern:

Be it known that I, FERDINAND LEHR, of the city of New York, in thecounty and State of New York, have invented certain Improve ments inOilers, of which the following is a specification My invention relatesto certain improve- -ments in that class of oilers which yield their oilby pressing their bottom or sides inward. The object of my invention isto provide an oiler from which the air can escape, when its volume isincreased by expansion, to prevent the oil from being forced out throughthe nozzle, and, also, into which fresh air may be admitted to take theplace of the oil forced out of the oiler when used; and it consists,first, in the combination of a discharge-pipe terminating below thelevel of the oil, with an air-supply opening in the oiler above thelevel of the oil, said opening being so placed that it will necessarilybe closed by the thumb or finger of the operator when using the oiler;second, in the combination, with an oiler constructed as abovedescribed, of a stop, in combination with the screw-plug which closesthe oiler, to prevent the bottom or sides from being pressed too farinward and guard against too great a discharge of the oil; and, third,in an improved device for admitting the air to the oiler, which servesas a stop to prevent undue compression, and which will prevent theescape of oil when the oiler is accidentally upset, as will behereinafter described and set forth.

In the drawings, Figure 1 represents a sectional view of my oiler,showing the air-opening through the upper side of the same. Fig. 2represents a sectional view of an oiler, showing a modification of myinvention, in which the air is admitted from the bottom or under sidethrough a tube, which also serves as a stop. Fig. 3 shows a modificationof the oiler, provided with a stop, and having the air-aperture on theupper side; and Figs. 4 and 5 show modifications of the oiler, showingvarious ways of arranging the discharge tubes or nozzles in combinationwith the same.

A represents the discharge tube or nozzle extending into the oiler, andterminating in such a position that it will fall below the level of theoil in the oiler when the same is being used. In Fig. l the tube A isshown extending into the oiler, and bent upward, so that it will beabove the level of the oil when the oiler is not in use; but in usingthe oiler it is inverted, so as to bring the end of said tube below thelevel of the oil. The position of the tube A in the remaining figures isnaturally below the level of the oil, as it will be perceived. Brepresents the oiler, which is a disk-shaped metallic vessel withflexible sides that may be readily pressed. inward. At the center of oneof the sides is made an aperture, 0, provided with a screw-cap, throughwhich aperture the oiler is filled. The airaperture E, in themodifications shown in Figs. 1, 3, 4, and 5, is made through the saidscrew-cap D, which forms a bearing upon which the thumb or fingers mustnecessarily rest in compressing the sides of the oiler, as will beperceived, and consequently the aperture E will be naturally closed inthe act of using said oiler. In Fig. 3 the screw-cap is representedextending into the oiler and terminating near the lower side of thesame, its end being provided with a stop, F, consisting of a screw,which may be adjusted so as to regulate the extent to which the sidesmay be compressed, the air aperture E extending downward and through oneside of said cap into the oiler, as shown.

In modification shown in Fig. 4 the air-aperture is made through thebottom or lower side of the oiler, and communicates with the interior ofthe oiler through a passage formedin the stop F attached to said side orbottom. Said stop extends upward into a recess in the screw-cap D, asshown, but at sufficient distance from the top of said recess to allowthe air to be freely admittedto the oiler. As thus constructed, it willbe impossible for the oil to escape through the air-aperture, no matterwhat may be the position of the oiler, as will be readily perceived. Inusing this modification of the oiler, the thumb or finger, in pressingthe sides together, naturally seeks the center of the same and, ofcourse, closes the aperture at the moment the oil is discharged.

In all the modifications the aperture E remains open while the oiler isnot in use, permitting free ingress and egress of air.

What I claim is 1. The combination of the discharge-pipe A, terminatingbelow the level of the oil, with an air-supply opening through thecenter of the oiler above the level of the oil in the same, and in suchposition that it will be necessarily closed in using the oiler, allconstructed as herein shown and described.

2. In combination with an oiler constructed as described, the stop F, tolimit the amount of compression given to the same, to operate, inconnection with the screw-cap O, substantially as set forth.

' 3. The combination of the hollow stop F secured to the bottom or lowerside of the oiler, serving as an air-passage for-supplying air to theoiler, and to prevent the escape of oil when the same is upset, asherein described.

In testimony that Iclaim the foregoing I have hereunto set my hand andseal this 14th day of August 1874.

. F. LEHR. [L. 8.]

Witnesses W. HAUFF, E. F. KASTENHUBER.

